/* roulang page: index */
:root{
  --plum:#352638;--plum-deep:#211b22;--terracotta:#c77c5a;--apricot:#e5bca6;
  --cream:#f5f0ea;--paper:#fffdfc;--muted:#766b72;--line:#e5d9d3;
  --shadow:0 12px 32px rgba(53,38,56,.08);--radius:18px;--max:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;background:var(--cream);color:var(--plum-deep);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 64px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,252,.94);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 20px rgba(53,38,56,.06)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;color:var(--plum);line-height:1.2}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--terracotta);position:relative}
.logo-mark:after{content:"";position:absolute;inset:9px;border:2px solid var(--paper);border-radius:50%}
.logo small{display:block;font-size:11px;color:var(--muted);font-weight:500;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:7px;flex:1}
.nav-links a{padding:9px 13px;border-radius:9px;font-size:14px;color:#625761;transition:.2s}
.nav-links a:hover,.nav-links a.active{background:#f2e1d9;color:var(--plum);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px}
.age-badge,.tag{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:99px;background:#f4e6df;color:#89533f;font-size:12px;font-weight:700}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:10px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--plum);color:#fff}
.btn-primary:hover{background:#241928;transform:translateY(-2px);box-shadow:0 8px 18px rgba(53,38,56,.2)}
.btn-secondary{border-color:var(--terracotta);color:#9c5b42;background:transparent}
.btn-secondary:hover{background:#f2ded5;transform:translateY(-2px)}
.btn-link{color:var(--terracotta);font-weight:700;font-size:14px}
.btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(199,124,90,.35);outline-offset:3px}
.menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:25px}
main{overflow:hidden}
.hero{padding:82px 0 52px;background:linear-gradient(110deg,#f5f0ea 0%,#f5f0ea 56%,#edddd5 100%)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:62px;align-items:center}
.eyebrow{color:var(--terracotta);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:16px}
h1{font-size:clamp(38px,5vw,58px);line-height:1.18;letter-spacing:-.04em;color:var(--plum);margin-bottom:21px}
.hero-copy{font-size:18px;color:#625761;max-width:590px}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-visual{position:relative;border-radius:28px;overflow:hidden;min-height:360px;background:url('/assets/images/backpic/back-1.webp') center/cover;box-shadow:var(--shadow)}
.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(33,27,34,.68),transparent 65%)}
.visual-note{position:absolute;z-index:1;bottom:25px;left:26px;color:#fff}
.visual-note strong{display:block;font-size:22px;margin-bottom:10px}
.visual-tags{display:flex;gap:7px;flex-wrap:wrap}
.visual-tags span{padding:5px 9px;border:1px solid rgba(255,255,255,.4);border-radius:99px;font-size:12px;background:rgba(33,27,34,.28)}
.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:46px}
.trust-item{padding:15px 18px;border-top:1px solid var(--line);color:#665b63;font-size:14px}
.trust-item b{color:var(--plum);margin-right:7px}
.section{padding:90px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:34px}
.section-kicker{color:var(--terracotta);font-size:13px;font-weight:800;margin-bottom:7px}
h2{color:var(--plum);font-size:clamp(28px,3vw,38px);line-height:1.25;letter-spacing:-.03em}
.section-intro{color:var(--muted);max-width:550px}
.overview{display:grid;grid-template-columns:1.15fr .85fr 1fr;grid-template-rows:auto auto;gap:16px}
.entry{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-height:190px;transition:.22s;position:relative}
.entry:hover,.info-card:hover,.scene:hover,.news-card:hover{transform:translateY(-4px);border-color:var(--apricot);box-shadow:var(--shadow)}
.entry:nth-child(1){grid-row:span 2;background:var(--plum);color:#fff;min-height:396px}
.entry:nth-child(1) h3{color:#fff}
.entry:nth-child(2){grid-column:2}
.entry:nth-child(3){grid-column:3}
.entry:nth-child(4){grid-column:2 / 4}
.icon{font-size:24px;color:var(--terracotta);margin-bottom:15px}
.entry h3,.info-card h3,.scene h3{font-size:20px;color:var(--plum);margin-bottom:8px}
.entry p,.info-card p,.scene p{color:var(--muted);font-size:14px}
.entry:nth-child(1) p{color:#d9cbd4}
.arrow{position:absolute;right:22px;bottom:20px;color:var(--terracotta);font-weight:800}
.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:center}
.number-list{display:grid;gap:18px}
.number-row{display:grid;grid-template-columns:52px 1fr;gap:15px;align-items:start}
.number{font-size:25px;font-weight:800;color:var(--terracotta);line-height:1}
.number-row h3{font-size:18px;color:var(--plum);margin-bottom:3px}
.number-row p{font-size:14px;color:var(--muted)}
.image-panel{border-radius:24px;overflow:hidden;min-height:360px;background:#ddd}
.image-panel img{height:100%;min-height:360px}
.alt-bg{background:#eee1d9}
.tag-wall{display:flex;gap:10px;flex-wrap:wrap;padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:20px}
.filter-tag{padding:11px 16px;border-radius:10px;background:#f3ebe6;color:#66515c;border:1px solid transparent;font-size:14px}
.filter-tag.active{background:var(--plum);color:#fff}
.scenes{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.scene{padding:26px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);transition:.22s}
.scene:nth-child(even){margin-top:30px}
.scene .scene-no{color:var(--terracotta);font-weight:800;font-size:13px}
.process{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:18px}
.process:before{content:"";position:absolute;top:29px;left:10%;right:10%;height:1px;background:var(--apricot)}
.process-step{position:relative;text-align:center;background:var(--cream);z-index:1}
.process-step b{display:flex;margin:0 auto 16px;width:58px;height:58px;border-radius:50%;align-items:center;justify-content:center;background:var(--terracotta);color:#fff;font-size:20px}
.process-step h3{font-size:17px;color:var(--plum);margin-bottom:5px}
.process-step p{font-size:13px;color:var(--muted)}
.dark-section{background:var(--plum);color:#fff}
.dark-section h2{color:#fff}
.dark-section .section-intro,.dark-section li{color:#dacbd6}
.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
.check-list{list-style:none;display:grid;gap:12px;margin-top:23px}
.check-list li:before{content:"✓";color:var(--apricot);font-weight:800;margin-right:10px}
.security-art{min-height:280px;border:1px solid rgba(229,188,166,.35);border-radius:24px;background:url('/assets/images/backpic/back-5.webp') center/cover;position:relative}
.security-card{position:absolute;left:24px;bottom:24px;background:rgba(255,253,252,.94);color:var(--plum);padding:18px;border-radius:14px;width:220px;font-size:14px}
.news-list{display:grid;gap:14px}
.news-card{display:grid;grid-template-columns:155px 1fr auto;gap:22px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:13px;transition:.22s}
.news-card img{height:105px;border-radius:11px}
.news-card h3{font-size:18px;color:var(--plum);margin:6px 0}
.news-card p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{font-size:12px;color:#927f87}
.empty-state{text-align:center;padding:45px;background:var(--paper);border:1px dashed var(--line);border-radius:18px;color:var(--muted)}
.devices{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:16px;align-items:end}
.device{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:20px;text-align:center}
.device:nth-child(2){padding-top:34px}
.device-visual{height:110px;border:6px solid var(--plum);border-radius:15px;margin-bottom:18px;background:url('/assets/images/coverpic/cover-3.webp') center/cover}
.device h3{color:var(--plum);font-size:18px}.device p{font-size:13px;color:var(--muted)}
.timeline{border-left:2px solid var(--plum);padding-left:30px;display:grid;gap:24px}
.timeline-item{position:relative}.timeline-item:before{content:"";position:absolute;left:-39px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--terracotta);border:4px solid var(--cream)}
.timeline-item strong{color:var(--terracotta);font-size:13px}.timeline-item h3{font-size:18px;color:var(--plum);margin:3px 0}.timeline-item p{font-size:14px;color:var(--muted)}
.rules{display:grid;grid-template-columns:.7fr 1.3fr;gap:30px;align-items:start}
.rule-number{font-size:100px;line-height:.8;color:var(--apricot);font-weight:800}
.rule-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.rule{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:17px;font-size:14px;color:#625761}
.support{background:#f0e4dd;border-radius:24px;padding:42px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700;color:var(--plum)}
.field input,.field select,.field textarea{border:1px solid #d9c9c1;background:var(--paper);border-radius:9px;padding:12px 14px;color:var(--plum-deep);min-height:46px}
.field textarea{min-height:110px;resize:vertical}.consent{font-size:13px;color:var(--muted);grid-column:1/-1}
.form-status{display:none;color:#5f805e;font-size:14px;margin-top:12px}.form-status.show{display:block}
.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:21px 0;background:none;border:0;color:var(--plum);font-weight:700;text-align:left}.faq-q span{font-size:25px;color:var(--terracotta);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:15px;transition:max-height .25s,padding .25s}.faq-item.open .faq-a{max-height:130px;padding:0 35px 20px 0}.faq-item.open .faq-q span{transform:rotate(45deg)}
.final-cta{background:var(--plum-deep);border-radius:28px;padding:50px;color:#fff;position:relative;overflow:hidden}.final-cta:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(229,188,166,.2);border-radius:50%;right:-80px;top:-120px}.final-cta h2{color:#fff;max-width:650px}.final-cta p{color:#d8c9d4;margin:12px 0 25px;max-width:650px}.final-cta small{display:block;color:#bcaeb9;margin-top:18px}
.site-footer{background:var(--plum);color:#fff;padding:56px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px;padding-bottom:40px}.site-footer h3{font-size:18px;margin-bottom:15px}.site-footer p,.site-footer a{font-size:14px;color:#d7c9d4}.site-footer a{display:block;margin:8px 0;transition:.2s}.site-footer a:hover{color:var(--apricot);padding-left:3px}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#bcaeb9}
@media(max-width:992px){.container{width:min(var(--max),calc(100% - 48px))}.nav-links{gap:0}.nav-links a{padding:8px}.logo{min-width:205px}.hero-grid,.security-grid{gap:30px}.overview{grid-template-columns:1fr 1fr}.entry:nth-child(1){grid-row:auto;min-height:240px}.entry:nth-child(3),.entry:nth-child(4){grid-column:auto}.process{gap:8px}.devices{grid-template-columns:1fr 1fr}.device:nth-child(2){order:-1;grid-column:1/-1}}
@media(max-width:768px){.container{width:calc(100% - 32px)}.navbar{height:68px}.nav-actions .age-badge,.nav-actions .btn{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:14px 16px;box-shadow:0 12px 20px rgba(33,27,34,.1);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 14px}.hero{padding:55px 0 35px}.hero-grid,.split,.security-grid,.rules{grid-template-columns:1fr}.hero-visual{min-height:280px}.trust-strip{grid-template-columns:1fr 1fr;margin-top:30px}.section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:12px}.overview,.scenes{grid-template-columns:1fr}.entry:nth-child(1){min-height:210px}.scene:nth-child(even){margin-top:0}.process{grid-template-columns:1fr;text-align:left;padding-left:28px}.process:before{top:20px;bottom:20px;left:28px;width:1px;height:auto}.process-step{text-align:left;display:grid;grid-template-columns:58px 1fr;gap:15px;align-items:center}.process-step b{margin:0;grid-row:span 2}.news-card{grid-template-columns:100px 1fr}.news-card .btn-link{grid-column:2}.news-card img{height:82px}.rule-list{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full,.consent{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}}
@media(max-width:520px){h1{font-size:34px}.hero-copy{font-size:16px}.hero-actions .btn{width:100%}.trust-strip{grid-template-columns:1fr}.overview .entry{min-height:175px}.news-card{grid-template-columns:1fr}.news-card img{height:150px}.news-card .btn-link{grid-column:auto}.devices{grid-template-columns:1fr}.device:nth-child(2){grid-column:auto;order:0}.support,.final-cta{padding:28px 20px}.footer-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
      --plum:#352638;--plum-deep:#211b22;--terracotta:#c77c5a;--apricot:#e5bca6;
      --cream:#f5f0ea;--paper:#fffdfc;--muted:#766b72;--line:#e5d9d3;
      --soft:#f1e5df;--shadow:0 12px 32px rgba(53,38,56,.08);
      --shadow-dark:0 18px 40px rgba(26,17,27,.2);--radius:18px;--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--plum-deep);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,252,.95);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 5px 20px rgba(53,38,56,.06)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;color:var(--plum);line-height:1.2}
    .logo-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--terracotta);position:relative}
    .logo-mark:after{content:"";position:absolute;inset:9px;border:2px solid var(--paper);border-radius:50%}
    .logo small{display:block;font-size:11px;color:var(--muted);font-weight:500;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:7px;flex:1}
    .nav-links a{padding:9px 13px;border-radius:9px;font-size:14px;color:#625761;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:#f2e1d9;color:var(--plum);font-weight:700}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .age-badge,.tag{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:99px;background:#f4e6df;color:#89533f;font-size:12px;font-weight:700}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:10px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--plum);color:#fff}
    .btn-primary:hover{background:#241928;transform:translateY(-2px);box-shadow:0 8px 18px rgba(53,38,56,.2)}
    .btn-secondary{border-color:var(--terracotta);color:#9c5b42;background:transparent}
    .btn-secondary:hover{background:#f2ded5;transform:translateY(-2px)}
    .btn-link{color:var(--terracotta);font-weight:700;font-size:14px}
    .btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(199,124,90,.35);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:25px}
    main{overflow:hidden}
    .inner-head{padding:70px 0 48px;background:#eee3dc;border-bottom:1px solid var(--line)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:25px}
    .crumbs a{color:var(--terracotta);font-weight:700}
    .head-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:end}
    .eyebrow,.section-kicker{color:var(--terracotta);font-size:13px;font-weight:800;letter-spacing:.06em;margin-bottom:10px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,54px);line-height:1.18;letter-spacing:-.04em;color:var(--plum);margin-bottom:18px}
    h2{font-size:34px;line-height:1.25;color:var(--plum);margin-bottom:12px}
    h3{font-size:19px;line-height:1.4;color:var(--plum);margin-bottom:8px}
    .head-copy{font-size:17px;color:#625761;max-width:700px}
    .head-note{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}
    .head-note strong{display:block;color:var(--plum);margin-bottom:7px}
    .head-note p{font-size:14px;color:var(--muted);margin-bottom:0}
    .section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-intro{color:var(--muted);max-width:570px}
    .index-panel{display:grid;grid-template-columns:1.1fr 2fr;gap:28px;align-items:stretch}
    .index-lead{background:var(--plum);color:#fff;border-radius:22px;padding:32px;display:flex;flex-direction:column;justify-content:space-between}
    .index-lead h2{color:#fff}
    .index-lead p{color:#dacbd6;font-size:15px}
    .index-links{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .index-link{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px;min-height:110px;transition:.22s}
    .index-link:hover{transform:translateY(-3px);border-color:var(--apricot);box-shadow:var(--shadow)}
    .index-link b{display:block;color:var(--terracotta);font-size:13px;margin-bottom:5px}
    .index-link span{font-weight:700;color:var(--plum)}
    .guide-list{display:grid;gap:14px}
    .guide-card{display:grid;grid-template-columns:72px 175px 1fr auto;gap:22px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:17px;padding:14px 18px 14px 14px;transition:.22s}
    .guide-card:hover{transform:translateX(4px);border-color:var(--apricot);box-shadow:var(--shadow)}
    .guide-no{font-size:28px;font-weight:800;color:var(--terracotta);text-align:center}
    .guide-card img{height:104px;border-radius:11px}
    .guide-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .guide-meta{font-size:12px;color:#927f87;margin-bottom:5px}
    .more-row{text-align:center;margin-top:26px}
    .steps-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
    .step-stack{display:grid;gap:14px}
    .step-card{display:grid;grid-template-columns:46px 1fr;gap:15px;padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:15px}
    .step-card strong{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--soft);color:var(--terracotta)}
    .step-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .step-image{border-radius:24px;overflow:hidden;min-height:420px;position:relative}
    .step-image img{height:100%;min-height:420px}
    .image-caption{position:absolute;left:22px;right:22px;bottom:20px;background:rgba(33,27,34,.82);color:#fff;border-radius:13px;padding:15px 18px;font-size:14px}
    .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .device-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:23px;min-height:220px}
    .device-icon{font-size:28px;color:var(--terracotta);margin-bottom:18px}
    .device-card p{color:var(--muted);font-size:14px;margin-bottom:15px}
    .device-card .tag{background:#f2ebe6;color:#6d5360}
    .trouble{background:#eadbd4}
    .trouble-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:center}
    .trouble-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .trouble-item{background:rgba(255,253,252,.82);border:1px solid rgba(229,217,211,.9);border-radius:14px;padding:18px}
    .trouble-item b{display:block;color:var(--plum);margin-bottom:5px}
    .trouble-item span{font-size:14px;color:var(--muted)}
    .dark-bar{background:var(--plum);color:#fff;border-radius:25px;padding:36px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:var(--shadow-dark)}
    .dark-bar h2{color:#fff;font-size:28px;margin-bottom:8px}
    .dark-bar p{color:#dacbd6;margin-bottom:0;font-size:15px}
    .dark-bar .btn-secondary{color:var(--apricot);border-color:var(--apricot)}
    .support{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .support-grid{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px}
    .support p{color:var(--muted);margin-bottom:0}
    .site-footer{background:var(--plum);color:#dacbd6;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}
    .site-footer .logo{color:#fff}
    .site-footer p{font-size:14px;color:#cdbdc8}
    .site-footer h3{font-size:15px;color:#fff;margin-bottom:17px}
    .site-footer .footer-grid>div>a:not(.logo){display:block;color:#cdbdc8;font-size:14px;margin:8px 0;transition:.2s}
    .site-footer a:hover{color:var(--apricot)!important}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);padding-top:20px;margin-top:45px;color:#b9aab5;font-size:12px}
    @media(max-width:992px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .nav-links{gap:2px}.nav-links a{padding:8px 8px}.logo{min-width:210px}
      .head-grid,.steps-wrap,.trouble-grid{grid-template-columns:1fr}
      .guide-card{grid-template-columns:58px 145px 1fr auto}
    }
    @media(max-width:768px){
      .container{width:calc(100% - 32px)}
      .navbar{height:70px}.menu-toggle{display:block;margin-left:auto}
      .nav-links{display:none;position:absolute;top:70px;left:0;right:0;padding:14px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .nav-actions .age-badge,.nav-actions .btn{display:none}
      .logo{min-width:0;font-size:14px}.logo-mark{width:30px;height:30px;flex-basis:30px}
      .inner-head{padding:48px 0 35px}.section{padding:58px 0}
      h2{font-size:29px}.section-head{display:block}
      .section-intro{margin-top:12px}
      .index-panel,.index-links,.device-grid,.trouble-list{grid-template-columns:1fr}
      .guide-card{grid-template-columns:45px 1fr;gap:15px}
      .guide-card img{grid-row:span 2;height:130px}
      .guide-card .guide-text{grid-column:2}.guide-card .btn-link{grid-column:2}
      .step-image,.step-image img{min-height:300px}
      .dark-bar,.support-grid{display:block;padding:28px 24px}.dark-bar .btn{margin-top:22px}
      .support-grid .btn{margin-top:18px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .head-note{margin-top:8px}.guide-card{grid-template-columns:1fr}.guide-card img{grid-row:auto;height:180px}.guide-card .guide-text,.guide-card .btn-link{grid-column:auto}
      .index-lead{padding:25px}.footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: article */
:root{
  --plum:#352638;--plum-deep:#211b22;--terracotta:#c77c5a;--apricot:#e5bca6;
  --cream:#f5f0ea;--paper:#fffdfc;--muted:#766b72;--line:#e5d9d3;
  --shadow:0 12px 32px rgba(53,38,56,.08);--radius:18px;--max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--plum-deep);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 64px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,252,.95);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 20px rgba(53,38,56,.06)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;color:var(--plum);line-height:1.2}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--terracotta);position:relative;flex:none}
.logo-mark:after{content:"";position:absolute;inset:9px;border:2px solid var(--paper);border-radius:50%}
.logo small{display:block;font-size:11px;color:var(--muted);font-weight:500;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:7px;flex:1}
.nav-links a{padding:9px 13px;border-radius:9px;font-size:14px;color:#625761;transition:.2s}
.nav-links a:hover,.nav-links a.active{background:#f2e1d9;color:var(--plum);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px}
.age-badge,.tag{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:99px;background:#f4e6df;color:#89533f;font-size:12px;font-weight:700}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:10px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--plum);color:#fff}
.btn-primary:hover{background:#241928;transform:translateY(-2px);box-shadow:0 8px 18px rgba(53,38,56,.2)}
.btn-secondary{border-color:var(--terracotta);color:#9c5b42;background:transparent}
.btn-secondary:hover{background:#f2ded5;transform:translateY(-2px)}
.btn-link{color:var(--terracotta);font-weight:700;font-size:14px}
.btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(199,124,90,.35);outline-offset:3px}
.menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:25px}
main{overflow:hidden}
.article-banner{padding:58px 0 64px;background:linear-gradient(110deg,#f5f0ea 0%,#f5f0ea 57%,#edddd5 100%)}
.breadcrumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:26px;white-space:nowrap;overflow:hidden}
.breadcrumbs a{color:var(--terracotta);font-weight:700}
.breadcrumbs span:last-child{overflow:hidden;text-overflow:ellipsis}
.article-head{max-width:910px}
.eyebrow{color:var(--terracotta);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:13px}
.article-head h1{font-size:clamp(34px,5vw,54px);line-height:1.2;letter-spacing:-.03em;color:var(--plum);margin:0 0 22px;font-weight:800}
.article-lead{font-size:18px;color:#625761;max-width:820px}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:23px;color:#806f77;font-size:13px}
.notice-badge{display:inline-flex;margin-top:24px;padding:9px 14px;background:rgba(255,253,252,.7);border:1px solid #d9c2b7;border-radius:99px;color:#80503f;font-size:13px;font-weight:700}
.section{padding:76px 0}
.intro-box{max-width:820px;margin:auto;background:#f1e1d8;border:1px solid #e3c8bb;border-radius:20px;padding:26px 30px;color:#594951}
.intro-box strong{display:block;color:var(--plum);font-size:18px;margin-bottom:7px}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:55px;align-items:start;justify-content:center}
.article-content{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:42px 48px;box-shadow:var(--shadow);min-width:0}
.article-content h2{font-size:28px;color:var(--plum);line-height:1.35;margin:36px 0 16px;padding-left:15px;border-left:4px solid var(--terracotta)}
.article-content h3{font-size:21px;color:var(--plum);margin:28px 0 10px}
.article-content p{font-size:17px;line-height:1.95;color:#50454d;margin:0 0 20px}
.article-content ul,.article-content ol{padding-left:25px;color:#50454d;margin:15px 0 24px}
.article-content li{font-size:16px;line-height:1.9;margin:7px 0}
.article-content blockquote{margin:28px 0;padding:18px 22px;border-left:3px solid var(--apricot);background:#faf2ed;color:#6f5962;border-radius:0 12px 12px 0}
.article-content img{border-radius:15px;margin:25px 0 8px;max-height:520px}
.article-content figure{margin:25px 0}
.article-content figcaption{text-align:center;color:var(--muted);font-size:13px}
.article-content a{color:#a75f45;text-decoration:underline;text-decoration-color:#dfb09b;text-underline-offset:3px}
.article-side{position:sticky;top:105px}
.side-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px}
.side-card h3{font-size:17px;color:var(--plum);margin:0 0 15px}
.side-card a{display:block;padding:9px 0;color:#75666d;border-bottom:1px solid #eee4df;font-size:14px}
.side-card a:last-child{border-bottom:0}
.side-card a:hover{color:var(--terracotta)}
.compliance-card{border:1px solid #d9b19d;border-radius:17px;padding:22px;background:#fbf0e9;margin-top:18px;color:#694e55;font-size:14px}
.compliance-card strong{display:block;color:#92553d;margin-bottom:6px}
.article-tools{display:flex;justify-content:space-between;gap:16px;align-items:center;flex-wrap:wrap;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.article-tags{display:flex;gap:8px;flex-wrap:wrap}
.article-tags span{padding:6px 10px;background:#f3ebe6;border-radius:8px;color:#735f68;font-size:13px}
.tool-actions{display:flex;gap:16px}
.tool-actions button{border:0;background:none;color:var(--terracotta);font-weight:700;padding:8px 0}
.support-strip{background:var(--plum);color:#fff;border-radius:25px;padding:35px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.support-strip h2{font-size:25px;margin:0 0 7px}
.support-strip p{color:#dacbd6;margin:0;font-size:14px}
.related-section{background:#f0e8e2}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
.section-kicker{color:var(--terracotta);font-size:13px;font-weight:800;margin-bottom:6px}
.section h2{font-size:32px;color:var(--plum);margin:0;line-height:1.3}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.22s}
.related-card:hover{transform:translateY(-4px);border-color:var(--apricot);box-shadow:var(--shadow)}
.related-card img{height:145px}
.related-card-body{padding:19px}
.related-card h3{font-size:18px;color:var(--plum);margin:8px 0}
.related-card p{font-size:14px;color:var(--muted);margin:0 0 13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{font-size:12px;color:#927f87}
.site-footer{background:var(--plum);color:#dacbd6;padding:62px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:55px}
.site-footer .logo{color:#fff}
.site-footer h3{font-size:15px;color:#fff;margin:5px 0 15px}
.site-footer a:not(.logo){display:block;color:#cdbdc8;font-size:14px;margin:8px 0}
.site-footer a:hover{color:var(--apricot)}
.site-footer p{font-size:14px;color:#cdbdc8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#bcaab8}
@media(max-width:992px){
  .container{width:min(var(--max),calc(100% - 48px))}
  .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}
  .nav-actions .btn{display:none}.article-layout{grid-template-columns:1fr}.article-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}.compliance-card{margin-top:0}
}
@media(max-width:768px){
  .container{width:calc(100% - 32px)}.navbar{height:70px}.logo{min-width:0;font-size:14px}.logo-mark{width:30px;height:30px}
  .menu-toggle{display:block}.nav-actions{margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;background:var(--paper);padding:12px;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.age-badge{display:none}
  .article-banner{padding:42px 0 48px}.article-head h1{font-size:36px}.article-lead{font-size:16px}
  .section{padding:54px 0}.article-content{padding:28px 22px}.article-content p{font-size:16px}
  .related-grid{grid-template-columns:1fr}.support-strip{padding:28px 24px;display:block}.support-strip .btn{margin-top:19px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:520px){
  .article-meta{gap:9px 14px}.article-side{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{
      --plum:#352638;--plum-deep:#211b22;--terracotta:#c77c5a;--apricot:#e5bca6;
      --cream:#f5f0ea;--paper:#fffdfc;--muted:#766b72;--line:#e5d9d3;
      --shadow:0 12px 32px rgba(53,38,56,.08);--radius:18px;--max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--plum-deep);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,252,.95);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 5px 20px rgba(53,38,56,.06)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;color:var(--plum);line-height:1.2}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--terracotta);position:relative;flex:none}
    .logo-mark:after{content:"";position:absolute;inset:9px;border:2px solid var(--paper);border-radius:50%}
    .logo small{display:block;font-size:11px;color:var(--muted);font-weight:500;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:7px;flex:1}
    .nav-links a{padding:9px 13px;border-radius:9px;font-size:14px;color:#625761;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:#f2e1d9;color:var(--plum);font-weight:700}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .age-badge,.tag{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:99px;background:#f4e6df;color:#89533f;font-size:12px;font-weight:700}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:10px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--plum);color:#fff}
    .btn-primary:hover{background:#241928;color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(53,38,56,.2)}
    .btn-secondary{border-color:var(--terracotta);color:#9c5b42;background:transparent}
    .btn-secondary:hover{background:#f2ded5;color:#7f4735;transform:translateY(-2px)}
    .btn-link{color:var(--terracotta);font-weight:700;font-size:14px}
    .btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(199,124,90,.35);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:25px}
    main{overflow:hidden}
    .page-intro{padding:70px 0 58px;background:#eee4dc;border-bottom:1px solid var(--line)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:25px}
    .crumbs a{color:var(--terracotta);font-weight:700}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:65px;align-items:end}
    .eyebrow,.section-kicker{color:var(--terracotta);font-size:13px;font-weight:800;letter-spacing:.08em}
    h1{font-size:clamp(34px,4.5vw,54px);line-height:1.2;color:var(--plum);letter-spacing:-.03em;margin:10px 0 18px;font-weight:800}
    h2{font-size:32px;line-height:1.3;color:var(--plum);margin:8px 0 14px;font-weight:800}
    h3{margin:0;color:var(--plum);font-size:20px;line-height:1.4}
    .intro-copy{max-width:700px;color:#625761;font-size:17px}
    .intro-aside{padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
    .intro-aside img{height:155px;border-radius:13px;margin-bottom:18px}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:30px}
    .section-intro{max-width:570px;color:var(--muted)}
    .overview-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr 1fr;gap:14px}
    .overview-card{background:var(--paper);padding:24px;border:1px solid var(--line);border-radius:16px;min-height:155px;transition:.22s}
    .overview-card:nth-child(2){margin-top:25px}.overview-card:nth-child(4){margin-top:-15px}
    .overview-card:hover,.doc-item:hover,.support-box:hover{transform:translateY(-4px);border-color:var(--apricot);box-shadow:var(--shadow)}
    .overview-card b{display:block;color:var(--terracotta);font-size:24px;margin-bottom:15px}
    .overview-card p,.doc-item p,.support-box p{color:var(--muted);font-size:14px;margin:8px 0 15px}
    .doc-list{display:grid;gap:13px;max-width:900px}
    .doc-item{display:grid;grid-template-columns:55px 1fr auto;gap:20px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:19px 22px;transition:.22s}
    .doc-num{font-size:24px;color:var(--terracotta);font-weight:800}
    .doc-item p{margin:5px 0 0}
    .more-row{text-align:center;margin-top:27px}
    .privacy-module{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
    .privacy-module img{height:360px;border-radius:23px;box-shadow:var(--shadow)}
    .check-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:14px}
    .check-list li{color:#625761;padding-left:27px;position:relative}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--terracotta);font-weight:800}
    .rule-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .rule-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:25px 20px;min-height:190px}
    .rule-card strong{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:#f2ded5;color:var(--terracotta);margin-bottom:17px}
    .rule-card p{font-size:14px;color:var(--muted);margin:8px 0 0}
    .faq-wrap{max-width:900px}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;padding:22px 4px;background:none;border:0;text-align:left;color:var(--plum);font-weight:800;display:flex;justify-content:space-between;align-items:center}
    .faq-q span{font-size:24px;color:var(--terracotta);transition:.25s}
    .faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:15px;transition:max-height .3s ease,padding .3s ease}
    .faq-item.open .faq-a{max-height:180px;padding:0 35px 22px 4px}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .support-section{background:var(--plum);color:#fff;border-radius:26px;margin:0 auto 82px;padding:52px 58px}
    .support-grid{display:grid;grid-template-columns:1fr auto;align-items:center;gap:35px}
    .support-section h2{color:#fff}.support-section p{color:#dacbd6;max-width:650px}
    .support-note{font-size:13px;color:#d9c3bc;margin-top:24px;border-top:1px solid rgba(255,255,255,.17);padding-top:18px}
    .site-footer{background:var(--plum);color:#dacbd6;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px}
    .site-footer h3{color:#fff;font-size:15px;margin:0 0 16px}
    .site-footer a{display:block;margin:8px 0;color:#dacbd6;font-size:14px;transition:.2s}
    .site-footer a:hover{color:var(--apricot);padding-left:3px}
    .site-footer .logo{color:#fff}.site-footer .logo small{color:#cdbdc8}
    .site-footer p{font-size:14px;color:#cdbdc8}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:18px;font-size:12px;color:#bbaab5}
    @media(max-width:992px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .navbar{gap:16px}.logo{min-width:205px}.nav-links a{padding:8px 8px;font-size:13px}
      .intro-grid,.privacy-module{grid-template-columns:1fr;gap:28px}
      .overview-grid{grid-template-columns:1fr 1fr}.overview-card:nth-child(n){margin-top:0}
      .rule-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:calc(100% - 32px)}
      .navbar{height:68px}.logo{min-width:0;flex:1;font-size:14px}.logo-mark{width:30px;height:30px}
      .nav-actions .btn{display:none}.age-badge{font-size:11px}.menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:14px 16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:13px 15px}
      .page-intro{padding:48px 0 42px}.section{padding:60px 0}
      h2{font-size:28px}.section-head{display:block}.section-intro{margin-top:10px}
      .overview-grid,.rule-grid{grid-template-columns:1fr}
      .doc-item{grid-template-columns:42px 1fr;gap:13px}.doc-item .btn-link{grid-column:2}
      .privacy-module img{height:270px}
      .support-section{padding:38px 25px;margin-bottom:60px}.support-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .age-badge{display:none}.intro-copy{font-size:16px}
      .intro-aside img{height:125px}.section{padding:50px 0}
      .footer-grid{grid-template-columns:1fr}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category3 */
:root{
      --plum:#352638;--plum-deep:#211b22;--terracotta:#c77c5a;--apricot:#e5bca6;
      --cream:#f5f0ea;--paper:#fffdfc;--muted:#766b72;--line:#e5d9d3;
      --soft:#f1e5df;--shadow:0 12px 32px rgba(53,38,56,.08);--radius:18px;--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--plum-deep);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;line-height:1.7;font-size:16px}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25}
    h1{font-size:clamp(34px,4.5vw,54px);font-weight:800;letter-spacing:-.03em}
    h2{font-size:clamp(28px,3.2vw,38px);font-weight:800;color:var(--plum)}
    h3{font-size:20px;color:var(--plum)}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,252,.95);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 5px 20px rgba(53,38,56,.06)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:235px;font-weight:800;color:var(--plum);line-height:1.2}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--terracotta);position:relative;flex:none}
    .logo-mark:after{content:"";position:absolute;inset:9px;border:2px solid var(--paper);border-radius:50%}
    .logo small{display:block;font-size:11px;color:var(--muted);font-weight:500;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:7px;flex:1}
    .nav-links a{padding:9px 13px;border-radius:9px;font-size:14px;color:#625761;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:#f2e1d9;color:var(--plum);font-weight:700}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .age-badge,.tag{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:99px;background:#f4e6df;color:#89533f;font-size:12px;font-weight:700}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 19px;border-radius:10px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--plum);color:#fff}
    .btn-primary:hover{background:#241928;color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(53,38,56,.2)}
    .btn-secondary{border-color:var(--terracotta);color:#9c5b42;background:transparent}
    .btn-secondary:hover{background:#f2ded5;transform:translateY(-2px)}
    .btn-link{color:var(--terracotta);font-weight:700;font-size:14px}
    .btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(199,124,90,.35);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:25px}
    .page-intro{padding:72px 0 58px;background:linear-gradient(110deg,#f5f0ea,#edddd5);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:28px}
    .breadcrumb span{color:var(--terracotta)}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:end}
    .eyebrow,.section-kicker{color:var(--terracotta);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:13px}
    .lead{max-width:700px;color:#625761;font-size:18px}
    .intro-panel{min-height:210px;border-radius:24px;background:url('/assets/images/backpic/back-6.webp') center/cover;position:relative;overflow:hidden;padding:25px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end}
    .intro-panel:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(33,27,34,.8),rgba(53,38,56,.08))}
    .intro-panel>*{position:relative}
    .intro-panel h3{color:#fff;margin-bottom:8px}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-intro{max-width:590px;color:var(--muted)}
    .filter-bar{display:flex;gap:10px;flex-wrap:wrap;padding:20px;background:var(--paper);border:1px solid var(--line);border-radius:16px}
    .filter{border:1px solid var(--line);background:#faf5f1;color:#675863;border-radius:9px;padding:10px 15px;font-size:14px;transition:.2s}
    .filter:hover,.filter.active{background:var(--plum);border-color:var(--plum);color:#fff}
    .updates-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .update-feature,.update-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.22s}
    .update-feature:hover,.update-card:hover{transform:translateY(-4px);border-color:var(--apricot);box-shadow:var(--shadow)}
    .update-feature{display:grid;grid-template-columns:.9fr 1.1fr}
    .update-feature img{height:100%;min-height:290px}
    .update-body{padding:27px}
    .update-body h3{margin:10px 0 9px;font-size:24px}
    .update-body p,.update-card p{font-size:14px;color:var(--muted)}
    .update-card{display:grid;grid-template-columns:118px 1fr;gap:16px;padding:12px;margin-bottom:14px}
    .update-card img{height:112px;border-radius:11px}
    .update-card .update-body{padding:5px 8px 5px 0}
    .update-card h3{font-size:18px;margin:6px 0}
    .meta{font-size:12px;color:#927f87}
    .more{margin-top:22px;text-align:right}
    .timeline{max-width:820px;margin:0 auto;border-left:2px solid var(--plum);padding-left:38px;display:grid;gap:31px}
    .timeline-item{position:relative}
    .timeline-item:before{content:"";position:absolute;left:-47px;top:4px;width:15px;height:15px;border-radius:50%;background:var(--terracotta);border:4px solid var(--cream)}
    .timeline-item strong{color:var(--terracotta);font-size:13px}
    .timeline-item h3{margin:5px 0;font-size:20px}
    .timeline-item p{color:var(--muted);margin-bottom:0}
    .rules-section{background:#eee4dd}
    .rules-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .rule-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:25px;min-height:165px}
    .rule-card b{color:var(--terracotta);font-size:13px}
    .rule-card h3{margin:9px 0}
    .rule-card p{font-size:14px;color:var(--muted);margin:0}
    .advice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .advice-card{background:var(--paper);border:1px solid var(--line);padding:24px;border-radius:16px}
    .advice-icon{width:38px;height:38px;border-radius:12px;background:#f2ded5;color:var(--terracotta);display:grid;place-items:center;font-weight:800;margin-bottom:17px}
    .advice-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .popular-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .popular-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:23px;transition:.2s}
    .popular-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--apricot)}
    .popular-card h3{font-size:18px;margin:12px 0 8px}
    .popular-card p{font-size:14px;color:var(--muted);margin-bottom:16px}
    .dark-cta{background:var(--plum);color:#fff;border-radius:25px;padding:48px 55px;position:relative;overflow:hidden}
    .dark-cta:after{content:"";position:absolute;width:320px;height:320px;border:1px solid rgba(229,188,166,.18);border-radius:50%;right:-100px;top:-130px}
    .dark-cta>*{position:relative;z-index:1}
    .dark-cta h2{color:#fff;margin-bottom:12px}
    .dark-cta p{color:#dacbd6;max-width:700px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .dark-cta .btn-secondary{color:var(--apricot);border-color:var(--apricot)}
    .site-footer{background:var(--plum);color:#dacbd6;padding:60px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px}
    .footer-grid h3{font-size:16px;color:#fff;margin-bottom:17px}
    .footer-grid p{font-size:14px}
    .footer-grid>a,.footer-grid div>a{display:block;font-size:14px;margin:9px 0;color:#dacbd6;transition:.2s}
    .footer-grid div>a:hover{color:var(--apricot);padding-left:3px}
    .footer-bottom{border-top:1px solid rgba(229,188,166,.2);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;font-size:12px;color:#bcaab7}
    @media(max-width:992px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .navbar{gap:16px}.logo{min-width:205px}.nav-links a{padding:8px 8px;font-size:13px}
      .intro-grid,.updates-layout{grid-template-columns:1fr}
      .advice-grid,.popular-list{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:calc(100% - 32px)}
      .navbar{height:70px}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:var(--paper);padding:12px;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-actions .btn{display:none}.menu-toggle{display:block}
      .intro-grid{gap:28px}.page-intro{padding:50px 0 42px}.section{padding:62px 0}
      .section-head{display:block}.section-head .btn-link{display:inline-block;margin-top:12px}
      .update-feature{grid-template-columns:1fr}.update-feature img{height:220px;min-height:0}
      .rules-grid,.advice-grid,.popular-list{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      h1{font-size:34px}.lead{font-size:16px}.intro-panel{min-height:180px}
      .update-card{grid-template-columns:92px 1fr}.update-card img{height:96px}
      .update-card h3{font-size:16px}.update-card p{font-size:13px}
      .dark-cta{padding:32px 24px}.footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}